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Finding the Fourth Proportional to 15,991.57, 23,987.36 and 8,195.41

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Solution

The fourth proportional to 15,991.57, 23,987.36 and 8,195.41 is: 12,293.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.57 : 23,987.36 = 8,195.41 : x
  2. Step 2: Convert to fraction form
    15,991.57/23,987.36 = 8,195.41/x
  3. Step 3: Cross multiply
    15,991.57x = 23,987.36 × 8,195.41
  4. Step 4: Simplify right side
    15,991.57x = 196,586,250.02
  5. Step 5: Solve for x
    x = 196,586,250.02/15,991.57
  6. Step 6: Final answer
    x = 12,293.12

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.